RRB Group D 10-Oct-2018 Shift 2 Solved Paper

Question : 78 of 100

Marks: +1, -0

Ankita sold her text book for a loss of

15 \%

. If she would have sold the textbook for an increased price of

\Rs. 150,

there would have been gain of

10 \%,

What was the cost price of the text book? (used)

Solution:

From the question,

{L} \%=15 \%

{P} \%=10 \%

Difference in

{SP}=150

∴{C P(100+P)}/{100}-{C P(100-L)}/{100}

=150

C P[{110}/{100}-{85}/{100}]=150

C P({25}/{100})=150

C P={150 \× 100}/{25}=600

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